40981023 has 6 divisors (see below), whose sum is σ = 59194824. Its totient is φ = 27320676.

The previous prime is 40981007. The next prime is 40981027. The reversal of 40981023 is 32018904.

40981023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40981023 - 2⁴ = 40981007 is a prime.

It is a super-2 number, since 2×40981023² = 3358888492253058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40981027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2276715 + ... + 2276732.

It is an arithmetic number, because the mean of its divisors is an integer number (9865804).

Almost surely, 2^40981023 is an apocalyptic number.

40981023 is a deficient number, since it is larger than the sum of its proper divisors (18213801).

40981023 is a wasteful number, since it uses less digits than its factorization.

40981023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4553453 (or 4553450 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 40981023 is about 6401.6422111830. The cubic root of 40981023 is about 344.7685151626.

Adding to 40981023 its reverse (32018904), we get a palindrome (72999927).

The spelling of 40981023 in words is "forty million, nine hundred eighty-one thousand, twenty-three".